I need help about moding texture in AC4 Black Flag

[Jekoren]

Hello everyone. I want to mod some textures in ac4 Black flag. So first , I want to add ben hornigold's blue jacket to Edward Kenway's default robe. Then add a captain's hat with the feather on it to the outfit. Hat will disappear when the hood is on then reappear when hood if off. That ""when hood is off , on"" part maybe can be too hard for me because there can be bugs so hat part is not much necessary. So only Hornigold's blue jacket will do.Second , I want to swap Jackdaw's default black flags to original pirate flag which other pirate ships use.

 

Thanks by now who can help me.